SCALE INSECTS ('' COCCID^ ') OF AUSTRALIA. ?! 



There are two allied forms described by me as new, Eiiococcnn hnsarice 

 and E. villosa, which seem to take the place of this species in New Soutli Wales. 



308. Eriococcus eucalypti. Cat. Coccidse, }). 74. 



Note. There is an error in the reference in Mrs. Fernald's catalogue- 

 Read 1801 not 1881 in date of Maskell's description. 



Eriococcus gregajint;, n.s]). (Fig. GO.) 

 Eriococcus paradoxus. Mask. Froggatt, Agrk. Gazette, X. S. Wales, vol. xi, ]). 104. 1901. 



The female coccids mass their tests together on the branchlets of several 

 species of eucalypts ; they are found at Glen Innes, Albury, Mittagong. 

 and in localities about Sydney, upon the young growth. 



Adult female sacs about ^ of an inch in length, compressed together at 

 the base, standing on end in a mass, rounded on the summit, with a large 

 circular anal opening. Constructed from a closely felted secretion, forming 

 a leathery covering of a yellowish-brown tint (white at the base), but so 

 covered with fumagine that they are often blackened, while the exuding 

 •honey-dew gives them an external glaze. 



Adult female dark reddish, convex on the dorsal surface, fitting against 

 the side of the sac, with the ventral surface somewhat flattened, after egg- 

 laying forming a shrivelled, flattened skin against the sac with the larvse 

 beneath. While the female is all dark-purplish black before treatment in 

 potash, afterwards it is seen that the dorsal surface is brownish and senii- 

 opaque ; mounted on a slide, the upper portion to the second pair of legs is 

 brown, with the abdomen below clear. Antennae small, seven- jointed, first 

 broad runded, second parellel, with the third longest, fourth, fifth and sixth 

 tapering, seventh irregular, rounded at base with a constriction in the middle, 

 rounded at the tip, longer than the sixth, with stout, spiny hairs on the fifth, 

 sixth and seventh. Legs well developed, slender, tarsus longer than tibia, 

 with two spiny hairs on inner edge and the upper digitules long hairs dilated 

 at the tips. Anal tubercles yellowish brown, short and broad, with one long 

 seta on outer edge and several shorter ones. Anal ring large, with apparently 

 eight hairs. Derm covered with scattered short stout spines. 



The peculiar form of the masses of femate sacs agrees to a certain extent 

 with Maskell and Green's description of Eriococcus paradoxus and its varieties 

 which Green states should be placed in the genus Cerococcus, but the en- 

 closed female is quite distinct, and agrees in structure with the typical 

 EriocoGCxts. The sacs are more felted, and the anal opening larger, but they 

 are not unlike the more scattered sacs of E. coriacexs if they were placed 



upon end. 



Eriococcus guriieyi, Fiiller. 

 Trans. Ent. Sor., London, p. 441, pi. xv, fijr. !). I8i)<.t. 

 This species was found upon an undetermined species of Rhamanaceous 

 plant near Perth, Western Australia. The ])lant was also infested with tlir 

 tests of rn<fJisia jossiUs. 



